tulip night light

this is my first time for a such art work so there are some flaws. so if you like advices it can be like these;
1- I think natural pla is better for color contrast
2-make model wall as thick as possible because it is mostly fragile while working
3-select beads perfectly spherical and in same diameter. I used beads about 3.5mm in diameter, but not exactly identical and they are perorated.